VECO Tyonek Platform Upgrade Project · AutoCAD and Bentley AutoPLANT software were to be used....
Transcript of VECO Tyonek Platform Upgrade Project · AutoCAD and Bentley AutoPLANT software were to be used....
Background: Modifications and repairs to offshore
platforms are among some of the
most difficult and financially risky
industrial projects to execute. Extreme
remoteness, significant congestion,
and inaccessibility have historically
resulted in some of the highest
percent cost overruns in the
business. In this industry it is not
uncommon for budget overruns due
to rework to be easily in the range of
20% to 30% of the Total Installed
Cost (TIC) - meaning that the $2.3
Million (TIC) Tyonek upgrade project
would have potentially faced a
$690,000 budget overrun.
As is generally the case with existing
industrial facilities, onshore or off-
shore, accurate or up-to-date as-built
drawings were not available.
Therefore, the VECO Alaska design
team turned to their in-house 3D
High-Definition Survey (HDS) group to
accurately and completely capture the
existing environment.
The engineering and construction
scope included the following
equipment upgrades with associated
piping and services: 1) two
production separators, 2) two
coalescing filters, and 3) a cartridge
filter. In order to optimize engineer-
ing and design, Leica CloudWorx for
AutoCAD and Bentley AutoPLANT
software were to be used.
VECO, headquartered in Anchorage,
Alaska, USA, is a multinational, full
service EPC providing process design,
engineering, and construction
services. With over 25 years oil &
gas experience, VECO, Anchorage,
primarily supports Alaska's North
Slope. VECO, Anchorage, currently
owns a Leica HDS3000 scanner and
companion Cyclone software. The
office provides in-house services for
its engineering and construction
teams and outside surveying and
scanning services for plants and
other engineering companies.
ScopeTyonek offshore platform production separators,
coalescing, and cartridge filter retrofit project
CustomerConocoPhillips Alaska, Inc./VECO Alaska, Inc.
DateSeptembermber 2005
Project SummaryField
6 days; 2-person crew; 73 high-resolution
Leica HDS2500 scans
Office
22 days, 1 person
Deliverable
Registered scans for design team use with
Leica CloudWorx for AutoCAD;
selective 3D As-built Bentley AutoPLANT model
2005 Bentley BE Project Award Winner
Benefits:• Discovered and corrected critical equipment
installation problems during design
• Project 19.1% under budget
• 26% reduction in site trips
• Less than 1% of TIC rework as compared to
Industry average of 20% to 30%
• Established new “VECO Safety Through
Design Program” using HDS technology
• Optimized Engineering yields better
overall design
• On-time shut-down and start-up
Technology Note“The use of HDS3000 would
have doubled our site data
capture efficiency and performance”
Mark Christenson - VECO Alaska, Inc.
Leica Geosystems TruStoryVECO Tyonek Platform Upgrade Project
This photo is copyright of ConocoPhillips Alaska, Inc. and cannot be releasedor published without the express written consent of ConocoPhillips Alaska, Inc.© Conoco Phillips Alaska, Inc.
"The use of laser scanning and the associated
3D modeling tools on this offshore modification
project saved us significant time and direct
costs. Such techniques for this type of work
are becoming a standard procedure.”
Bart Neighbors, PE, PMP - Project Leader
ConocoPhillips Alaska Capital Projects
Technology Program
Leica Geosystems AGHeerbrugg, Switzerland
www.leica-geosystems.com/hds
Project Workflow:Data Collection & Registration:To support early engineering needs
and meet the aggressive project
schedule, a 2-person laser
scanning team led by Mark
Christenson, VECO Design
Technologies Manager, worked for
6 days, and collected 73 high-
resolution scans using their
HDS2500 scanner. Mark would later
note that the full dome capability
of the HDS3000 system, which they
currently own, would have surely
doubled their data capture
production. Target-based scan
registration, performed using Cyclone
REGISTER, was tied to the survey
control network on the platform. In
addition, Leica's Cloud-to-Cloud
registration technology was used to
accurately register any scans without
targets to adjacent, overlapping
registered scans. The overall
registration process was completed
and verified in 16 hours.
Optimized Engineering:The design team used Leica
CloudWorx for AutoCAD to
visualize and work with the
registered point cloud within
Bentley AutoPLANT 3D plant
design software. This enabled the
engineers to visualize and take
detailed measurements of the
existing remote facility entirely
within their 3D design environ-
ment but without having to travel
to the platform. Moreover, the
team was able to confidently
validate new design concepts;
model existing components, where
necessary; verify design
constructability and operational
adequacy; and, validate that the
proposed modification was
interference-free - all right from
the office without having to revisit
the remote site.
Fabrication and ConstructionBenefits Realized:A few of the benefits realized by
fabrication and construction:
1. New equipment was verified against
the point cloud for construction
feasibility and for assuring
interference-free installation.
2. Prior to equipment fabrication,
necessary changes were incor-
porated based on an installation
feasibility study that utilized HDS
information.
3. All spool pieces were fabricated
on shore
4. Rework cost at field fit-up and
installation was reduced to less
than 1% - substantially below
the industry average of 20-30%
and the project's budget
5. Post construction - ability to
rescan area and produce
accurate as-built drawings
“HDS now gives us the ability to quickly
collect accurate and detailed real-world
information that seamlessly integrates with
our 3D design systems, and in turn reduces
countless hours of field work and
construction rework due to inaccurate
information.
Mark Christenson - Design Technologies Manager,VECO Alaska, Inc.
Illustrations, descriptions and technical specificationsare not binding and may change. Printed in Switzerland.Copyright© Leica Geosystems AG, Heerbrugg,Switzerland, 2006.754092en – VI.06 – RVA
(conventional) (with HDS)